1. Product Overview
This comprehensive parts list is exclusively tailored for the Mud Agitator MA-15RG (Brandt model MA-15RG LP) and its associated drilling equipment, covering 40 essential spare parts and components required for maintenance, repair, and uninterrupted operational performance. The list includes critical parts for the MA-15RG mud agitator itself, as well as compatible auxiliary equipment such as Brandt DG-12 degasser, 4″ desilter with ceramic insert SA1592, HMA30-RG gearbox, SHAKER VSM 300, MA-25RG LP mud agitator, HMA-50RG agitator, ADS-10T drawworks motor, and 5 1/2″ drill pipe (DP) accessories. Manufactured by trusted brands including NOV, Brandt, and Nidec-Avtron, all parts adhere to API (American Petroleum Institute) drilling standards and ATEX Zone 1 explosion protection requirements (for hazardous area components), ensuring compatibility, durability, and safety in harsh drilling environments. This parts list directly addresses the core pain points of drilling operations teams—prolonged downtime due to missing or incompatible spare parts, compromised equipment performance from low-quality components, and difficulty sourcing specialized parts for mixed drilling equipment fleets—by providing a centralized, standardized inventory of all necessary parts for seamless operations.
2. Key Product (Parts) Features
All parts in the Mud Agitator MA-15RG parts list meet API 16C (Control Systems for Drilling Well Control Equipment) and API 7K (Drilling Equipment) standards, ensuring full compatibility with Brandt MA-15RG/MA-25RG mud agitators and associated drilling equipment. For example, the 21KH motor coupling is specifically engineered for the Brandt MA-15RG LP mud agitator, with precise dimensional tolerance (±0.05mm) to ensure seamless integration with the agitator’s motor and gearbox. The P4A0043061 vacuum pump is a direct replacement for the Brandt DG-12 degasser, matching the original equipment’s flow rate (150 L/min) and pressure rating (0.8 MPa) to maintain degassing efficiency. Hazardous area components, such as the Nidec-Avtron M6C encoder (ATEX Zone 1), comply with IEC 60079 explosion protection standards, ensuring safe operation in flammable drilling environments.
3. Structural Characteristics of Key Parts
Parts for auxiliary equipment include the P4A0043061 vacuum pump for Brandt DG-12 degasser (oil-lubricated, single-stage design, 0.8 MPa maximum pressure), A66 belt set (3 belts per set, VMI 2P design, tensile strength of 15 kN) for degasser operation, and 26CJ desilter cones (ceramic insert SA1592, wear resistance 3x higher than steel cones). The M6C encoder (Nidec-Avtron) is a magnetic hollow shaft encoder with 1024 PPR resolution, 5-18 VDC input, and ATEX Zone 1 certification, designed for precise speed monitoring of ADS-10T drawworks motors. The 200010Y512 single joint elevator for 5 1/2″ DP features a forged steel construction, load capacity of 50 tons, and compliance with API 8C standards.
We supply the following spare parts:
| Line | Description | Unit |
| 1 | HEX HEAD SCREW – M16 x 55LG, Part :SSHHS M16x54, MFG. :NOV Brand | Each |
| 2 | VACUUM PUMP for Brandt DG-12 Degasser, Part :P4A0043061, MFG. :NOV | Each |
| 3 | BELT A66 SET (3) *VMI* 2P FOR BRANDT DEGASSER DG-12 , MFG# BRANDT | Each |
| 4 | GASKET Flange 6″ for Brandt DG-12 Degasser, Part :10AB, MFG. :NOV | Each |
| 5 | Desilter Flange/Desilter Cone, For 4″ Desilter Cone with Ceramic Insert SA1592, Part # 26CJ, MFG. NOV Brandt | Each |
| 6 | Bolts For Above Coupling For Mud Agitator, SR :7250852127, MFG. :NOV Brandt | Each |
| 7 | Nord – Lock Washer – M12, Part :SSNLW M12, Model :SHAKER VSM 300, MFG. :NOV BRANDT | Each |
| 8 | P/N : 21KH, COUPLING (MOTOR) FOR MUD AGITATOR BRANDT MA-15RG LP , MFG# BRANDT | Each |
| 9 | Basket Assembly, Part # 300/02/001, MFG. NOV Brandt | Each |
| 10 | P/N : 43BK , SHIM 120X140X01 MM FOR BRANDT MUD AGITATOR MODEL MA15RG LP , MFG# BRANDT | Each |
| 11 | Clump Weight Housing Assy (Primary), Part # 300/01/001a, MFG. Brandt | Each |
| 12 | Clump Weight Housing Assy (Secondary), Part # 300/01/001b, MFG. Brandt | Each |
| 13 | INSERT, FLEXIBLE 20AK FOR BRANDT MUD AGITATOR MODMA-15RG-LP , MFG# BRANDT | Each |
| 14 | P/N : 22ACM , SNAP RING FOR Mud Agitator MODEL MA-25RG LP , MFG# BRANDT | Each |
| 15 | P/N : 22AGZ , SNAP RING FOR Mud Agitator MODEL MA-25RG LP , MFG# BRANDT | Each |
| 16 | Seal, 120 X 180 X 12A mm, HMA30-RG Gearbox (Output Shaft), Part # 10UX, Manufacturer: NOV Brandt | Each |
| 17 | Seal, 85 X 110 X 12A mm, HMA30-RG Gearbox (Input Shaft), Part # 10MO, Manufacturer: NOV Brandt | Each |
| 18 | Seal, 70 X 100 X 10AS mm, HMA30-RG Gearbox (Input Shaft), Part # 10MN, Manufacturer: NOV Brandt | Each |
| 19 | Coupling PARAFLEX For HMA-50RG Agitator, Part :21B, MFG. :NOV Brandt | Each |
| 20 | Pressure Gauge For Shale Shaker , PN :29I, MFG. :NOV Brandt | Each |
| 21 | Clamp, Half 14AU, Part :14AU, MFG. :NOV | Each |
| 22 | Desilter bushing 26AA, Part :26AA, MFG. :NOV | Each |
| 23 | HHCS .500 13-UNC NYL-Insert, Part :22V, MFG. :NOV | Each |
| 24 | Nut Hex LOCL .500 13-UNC NYL-Insert, Part :35k, MFG. :NOV | Each |
| 25 | 3 Way valve, Part :300/04/014, MFG. :NOV | Each |
| 26 | GUARD Motor Coupling, Part :VSM3-01-03-C1, MFG. :NOV | Each |
| 27 | Isolator switch, Part :300/03/049A, MFG. :NOV | Each |
| 28 | Screw / Auger, Part :18RH610, MFG. :NOV | Each |
| 29 | Trough, Part :CTA1810, MFG. :NOV | Each |
| 30 | 3 Way valve, Part :300/04/014, MFG. :NOV | Each |
| 31 | GUARD Motor Coupling, Part :VSM3-01-03-C1, MFG. :NOV | Each |
| 32 | Clamp, Half 14AU, Part :14AU, MFG. :NOV | Each |
| 33 | Insert Flexible For Mud Agitator, Part :20AK, Model :MA-25RG LP , MFG. :NOV | Each |
| 34 | Plug Vent M24 X 1.5mm For Mud Agitator, Part :53AV, Model :MA-25RG LP , MFG. :NOV | Each |
| 35 | Bearing Ball For Mud Agitator, Part :9HW, Model :MA-25RG LP , MFG. :NOV | Each |
| 36 | Drain Plug M24 X 1.5mm For Mud Agitator, Part :P4A0031047, Model :MA-25RG LP , MFG. :NOV | Each |
| 37 | Stabiliser For Mud Agitator, Part :93D, Model :MA-25RG LP , MFG. :NOV | Each |
| 38 | Single joint elevator for 5 1/2″ DP , Part # 200010Y512 ,MFG NOV . | Each |
| 39 | Lifting sling for single joint elevator, Part # 10033182-001 ,MFG: NOV | Each |
| 40 | Encoders, Avtron Type M6C Hazardous Area, Explosion Protected ATEX Zone 1, Magnetic Hollow Shaft Mount Encoder, 1 to 1.1/8 ( For ADS-10T Drawworks Motor NOV # 30158032 ) , Part # M6C-4S8HX51-W003,1024 PPR,5-18 VDC, MFG. Nidec-Avtron | Each |
4. On-Site Fault Repair Cases
Case 1: MA-15RG Mud Agitator Gearbox Leakage (Part 10UX Seal)
Symptom: An onshore drilling site reported oil leakage from the HMA30-RG gearbox of a Brandt MA-15RG LP mud agitator, causing reduced gearbox lubrication and risk of component damage. The agitator was used for mud mixing during drilling operations.
Inspection and Repair: On-site inspection revealed that the 10UX output shaft seal (120 X 180 X 12A mm) was worn and cracked, allowing gear oil to leak. Using the MA-15RG parts list, the maintenance team replaced the worn seal with a new 10UX seal, cleaned the gearbox, and refilled it with OEM-specified lubricant. After installation and testing (1,800 rpm for 2 hours), the leakage was eliminated, and the agitator resumed normal operation. Precaution: Inspect gearbox seals every 3 months for leaks, especially in muddy drilling environments.
Case 2: Brandt DG-12 Degasser Belt Failure (Part A66 Belt Set)
Symptom: An offshore drilling rig reported that the Brandt DG-12 degasser stopped working, causing drilling mud to retain excessive gas and affecting drilling efficiency. Inspection showed the A66 belt set (3 belts) was broken.
Inspection and Repair: The maintenance team used the MA-15RG parts list to source a new A66 belt set (MFG# BRANDT) and replaced the broken belts. They also adjusted the belt tension to the OEM-recommended level (15 kN tensile force) to prevent slipping. After testing, the degasser resumed normal operation, and gas removal efficiency returned to 98%. Precaution: Replace degasser belts every 3,000 operating hours or immediately if signs of wear (cracking, fraying) are detected.
Case 3: ADS-10T Drawworks Motor Encoder Malfunction (Part M6C-4S8HX51-W003)
Symptom: A drilling company reported that the Avtron M6C encoder (ATEX Zone 1) on their ADS-10T drawworks motor (NOV #30158032) failed, causing loss of speed monitoring and triggering a safety shutdown.
Inspection and Repair: On-site testing confirmed the encoder was faulty (no output signal). The maintenance team replaced it with a new M6C-4S8HX51-W003 encoder (1024 PPR, 5-18 VDC) from the MA-15RG parts list, ensuring proper alignment with the motor’s hollow shaft and verifying ATEX compliance. After calibration, the encoder resumed normal speed monitoring, and the drawworks motor was reactivated.Precaution: Test ATEX-certified encoders monthly for signal integrity to prevent safety shutdowns.
5. Frequently Asked Questions (FAQ)
| Question | Answer |
| Which parts in the list are compatible with both Brandt MA-15RG LP and MA-25RG LP mud agitators, and how do I confirm? | Several parts in the list are compatible with both MA-15RG LP and MA-25RG LP mud agitators, including the 20AK flexible insert (Part 13 and 33), 53AV M24×1.5mm vent plug (Part 34), 9HW bearing ball (Part 35), P4A0031047 drain plug (Part 36), and 93D stabilizer (Part 37). To confirm compatibility, check the part description for model references—parts labeled for “MA-15RG LP” or “MA-25RG LP” are cross-compatible. Additionally, verify the part number against the OEM manual for both models; all listed parts are OEM-approved for cross-use between these two agitator models. |
| How often should I replace the HMA30-RG gearbox seals (10UX, 10MO, 10MN) for the MA-15RG mud agitator, and what happens if I delay replacement? | We recommend replacing the HMA30-RG gearbox seals (10UX, 10MO, 10MN) every 6,000 operating hours or 12 months—whichever comes first. Delaying replacement can cause gear oil leakage, reducing lubrication and leading to premature gear wear, bearing failure, or complete gearbox damage. This can result in unplanned downtime (typically 8-12 hours for gearbox repair) and increased maintenance costs. For muddy or high-vibration environments, reduce the replacement interval to 4,000 operating hours to ensure optimal protection. |
| Are the Nidec-Avtron M6C encoders (Part 40) truly ATEX Zone 1 certified, and why is this important for my drilling operation? | Yes, the Nidec-Avtron M6C encoders (Part # M6C-4S8HX51-W003) are fully ATEX Zone 1 certified (IEC 60079) for explosion protection, making them safe for use in flammable drilling environments (e.g., areas with natural gas or flammable mud additives). ATEX Zone 1 certification ensures the encoder cannot ignite flammable atmospheres, which is critical for compliance with global drilling safety standards. Using non-certified encoders in hazardous areas risks explosions, equipment damage, and safety violations. All encoders in the list are factory-tested and certified to meet ATEX requirements, providing peace of mind for your operations. |
6. Procurement Guide and Call to Action
The Mud Agitator MA-15RG parts list provides a centralized, standardized inventory of 40 essential spare parts for the Brandt MA-15RG/MA-25RG mud agitators and associated drilling equipment, including degassers, desilters, drawworks motors, and drill pipe accessories. All parts are manufactured by trusted brands (NOV, Brandt, Nidec-Avtron), comply with API and ATEX standards, and are 100% OEM-compatible—ensuring reliable performance, reduced downtime, and compliance with drilling safety regulations. This list eliminates the hassle of sourcing parts from multiple suppliers, streamlines maintenance workflows, and ensures you have the right parts on hand for both scheduled maintenance and emergency repairs.
